For anyone who smokes and wants to quit, ask your doc about Chanitx. It is a new drug by Pfizer that came out last year. If you tried Zyban (welbutrin) and had no sucess, don't think that Chantix will be the same. I tried Zyban and it did nothing for my smoking. I quit with Chantix, it has been 3 months since I bought a pack of smokes, I used to smoke almost 1 pack a day!